Early lactation is an important phase for both the health of cows and their technical-economic performance. Good preparation during the three weeks before calving is a key factor for successful milk production.
A good start plays a significant role in successful lactation. Half of the production occurs during the first 100 days. If a cow’s lactation peak is lower than expected, she will not be able to compensate for the production deficit over the remainder of the lactation.
This rapid increase in production must be achieved by the cow during a fragile period: calving generates stress, which disrupts her immunity and can cause peripartum diseases (metritis, metabolic diseases); her intake remains limited relative to her needs, and her energy balance is unbalanced.
A significant part of lactation start occurs before calving. During the three weeks preceding it, cow preparation relies particularly on a ration adapted to this transition phase. This preparation also contributes to the vitality of the unborn calf and the quality of the colostrum.
Based on forage analysis and knowledge of the nutritional values of feed, the Chorus® rationing software establishes a densified ration.
This provides sufficient nutrients, despite limited intake, while initiating the transition to the milking cow ration.
Early lactation is accompanied by an increased need for calcium. Anticipating these needs relies particularly on managing the Dietary Cation-Anion Difference (DCAD), based on the mineral composition of forages (calcium, phosphorus, magnesium).
Depending on the objectives, DCAD can be adjusted by decreasing it, through increased chlorine and sulfur intake, or by orienting it towards a positive DCAD, particularly by adjusting the calcium/phosphorus ratio.
Phosphorus binders (e.g., Phosfix) help facilitate calcium mobilization.
Late gestation and early lactation are sensitive phases, associated with oxidative stress and inflammation.
Nutritional solutions can be implemented to support animals during this period.
After calving, a very rapidly assimilable calcium supplement helps reduce the risk of hypocalcemia. Propylene glycol administration reduces the risk of ketosis.
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